linux-kernel - [PATCH v3 1/3] staging: fbtft: Includes description to mutex and spinlock

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Date:   Thu, 9 Aug 2018 19:33:56 -0300
From:   Leonardo Brás <leobras.c@...il.com>
To:     Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 1/3] staging: fbtft: Includes description to mutex and
 spinlock - Style

Adds comments explaining what are the spinlock and mutex used for.

Signed-off-by: Leonardo Brás <leobras.c@...il.com>
---
 drivers/staging/fbtft/fbtft.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h
index 798a8fe98e95..958835da433c 100644
--- a/drivers/staging/fbtft/fbtft.h
+++ b/drivers/staging/fbtft/fbtft.h
@@ -203,7 +203,7 @@ struct fbtft_par {
 	u8 *buf;
 	u8 startbyte;
 	struct fbtft_ops fbtftops;
-	spinlock_t dirty_lock;
+	spinlock_t dirty_lock; /* Protects dirty_lines_{start,end} */
 	unsigned int dirty_lines_start;
 	unsigned int dirty_lines_end;
 	struct {
@@ -219,7 +219,7 @@ struct fbtft_par {
 	} gpio;
 	const s16 *init_sequence;
 	struct {
-		struct mutex lock;
+		struct mutex lock; /* Mutex for Gamma curve locking */
 		u32 *curves;
 		int num_values;
 		int num_curves;
-- 
2.18.0